Truck side frame



- Nov. 13,1923. v 1,474,212

w. A. LUCAS TRUCK SIDE FRAME Original Filed April 2Q 1920- WilmaPatented Nov. l3, 1%2".

WALTER ARNDT LUCAS, 0F HAWTHORNE, NE?! JERSEY,

ASSIGNOB, BY MESNE AS- SIGNMENTS, TO THE '1. H. SY'MINGTON COIEPANY, OFI-TEW"YORK, N. Y., A COR- PORATION OF DELAVTARE.

TRUCK SIDE Application filed April '29, 1920, Serial No. 377,441.

- To a'ZZ whom it may concern:

it known that I, lVAL'rE-n A. LUCAS, a citizen of the Uited St: (es,residing at Hawthorne. in the count;' of Passaic and State of NewJersey, have invented certain new and useful Improvements in Truck SideFrames; and I do hereby declare the following 'to be a full, clear. andexactdescription of the invention, such as will onable others skilled inthe art to which it appertains to make and use the same.

The invention relates to trucks for railway vehicles and moreparticularly to new and useful improvements in the construction o t sideframes for arch bar trucks.

The principal object of invention, broadly considered, is to strengthenand simplify the construction or arch bar side frames. To -thisend theprimary feature of the invention consists in a combined arch bar andjournal. box tie n'iemberof simple and novel form.

Other features of the invention will hereinatter aopcar from-thedetailed description oithe single embodiment or" myinvention, which isshown in the accompanying drawings, wherein,

Figure 1 is an elevational View of a symmetrical portion of a truck sideframe embodying my invention.

Figure 2 is a top View of the combined tension or lower archmembersshowing the same in assembled position, the upper arch member and thestrut column being omitted.

Figure c a sectional view.

Figure 4 is an end view of the upper portion of the side frame showingthe relation or" the arch members to the journal box seat.

Throughoutthe specification and drawings like parts are designated bylike reference characters.

Fhe trucl; side frame l is provided with a top arch member which isconveniently formed as a rectangular bar 2, and a lower arch memberwhich preferably comprises a pair of flanged bars 3, 3. interposedbetween the arch members intermediate the ends thereoi is a strut memberat which has for convenience been illustrated as comprising a pair orcolumns 5 connected by the conventional form. of spring plank 6; onlyone of the columns being illustrated in the drawings. it beingunderstood that the truck,

side frame is symmetrical on the center line.-

the upper arch bar to the said RenewedT/[ay 25, I923.

The ends of the arch members 2 and 3 are connected to a journal box seat7, the said seat iormmg a support for the upper wall oi the ournal box8. The ourn-al box seat illustratetd in the drawings preferably 001111311883 a hollow box like casting having alined holes in the top and bottomv s9 to receive the journal box bolts "10, the said bolts passingthrough and firmly connecting seat. The lower arch members arepreferably riveted to theside webs "l1 otthe said seat, as clearly shownin Fig. 4

The lower arch or compression members 3 are preferably formed as Z-barshaving their upper flanges 12 extending towards each other and theirlower langes geritending laterally of the truck frame in oppositedirections. To conveniently form the journal lJO-X tie bars I preferablycut through the web 14 of each Z-bar from the ends of the said barstopoint near the adjacent strut column. After the z-ba-r is cut the lowerflange is bent away from the remaining por ion of-each .bar 3 so thatthe end portions of each Z-bar arespacec l apart a distanceapproximately equal to the height of the journal box 8 plus the heightof the journal box seat 7. The cut through the web of each Z-ba-r ispreferably made in line w th the upper face of cach flange 13 for themajor portion of the cut and at least adjacent the outer end portionsthereof. By this means 1 form at each end of the said arch bar 3 asubstantially fiat plate 15b 7 These plates are then bent inwardly asshown at 16 so that the adjacent ends of the plates 15 formed from theZ-bars will overlap and underlie the ournal box to which they areconnected by means or" the journal box bolts 10. The said bolts areadapted to pass through alincd openings in both of the adjacent plates15, said plates being held to the journal box by the nuts 17 providedonthe ends of the bolts 10. By making the tie members integral with thelower arch members the number of parts in the truclrside frame ismaterially reduced and all possibility of a loose connection betweenthese members is avoided, thus greatly strengthening the side frame.

l/Vhile I have illustrated and described thecombined tension and journalbozrtie bars as being formed from Z-shaped members, I

do not intendto be limited to this form of member, and wish it to beunderstood that other forms of rolled shapes may be advanta eouslyemployed in this connection.

l-Iaving now full described my invention, what I claim and esire tosecure by Letters Patent is 1. A. truck side frame comprising a top anda plurality of spaced flanged bottom arch members, and means for unitingsaid members adjacent the journal boxes, each of said bottom archmembers being made from an integral bar split in a suitable manner toform journal box tie members therefrom.

2. A truck side frame comprising a top and a plurality of bottom archmembers, means for uniting said members adjacent the ends thereof, andjournal box tie members integral with each of the bottom arch members,the end portions of adjacent tie members being adapted to overlap.

3. A truck side frame comprising a top and a plurality of flanged bottomarch members, one flange of each of the said bottom members being spacedfrom the end portions thereof and being adapted to form a journal boxtie member.

4. A truck side frame comprising a top arch bar and a plurality of lowerarch members, the latter each being formed from a Z-bar.

5. A truck side frame comprising a top arch bar and a plurality of lowerarch members, the latter each being formed from a Z-bar the upright websthereof being spaced apart and the upper flanges thereof extendingtoward each other.

6. A truck side frame comprising a top 1 rara /2 7. A combined arch andjournal box tiebar for trucks comprising a flanged member havlng aunlted central portion and divlded end portions, the said divided endportlons being adapted to be spaced apart to receive a journal boxbetween the same, the cross sectional area of the said end portionsbeing the same as the cross sectional area of the united centralportion.

8. In a truck side frame, the combination with a compression member, ajournal box connected thereto and a strut, of a plurality of tensionmembers engaging said strut and connected to said journal box, eachtension member comprising a beam having a plurality of flanges extendinglaterally from the web, the said web being cut for a portion of itslength whereby one. of said flanges may extend above and the other belowthe said journal box, and means for connecting each of said flanges tothe said journal box. V

9. A combined tension and tie bar for truck side frames, comprising abeam provided with a plurality of flanges extending from the upper andlower edges of the web thereof, said flanges diverging from a pointadjacent the center of length of the said beam and adapted to extendabove and be low the journal box. 1

In testimony whereof I afiix my signature.

XVALTER ARNDT LUCAS.

